PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calcium monohydrogen phosphate dihydrate | 7789-77-7 |
15.01
15.02
|
||||||||||
| Formula | Synonyms | |||||||||||
| Ca.H.P.O4.2(H2.O) | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 136.06 | S | 2.89 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 12 | 130 | 790 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 2.2 | 23 | 140 |
Technical Basis
A review of available sources did not identify acute toxicity data or exposure limits for calcium monohydrogen phosphate dihydrate. Reported GHS health hazard ratings (H315 and H319, Category 2; H335, Category 3) indicate a mid-level hazard, approximately equivalent to an HHR=2. Analysts assumed an HHR=2 as the TEEL-3 basis (Section 3.4.5.). TEEL-1 and TEEL-2 values were derived according to Table 3.5
• PAC-1 = TEEL-1 = TEEL-2/11
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = HHR=2
This review generated PAC values consistent with Rev. 29A*.
• PAC-1 = TEEL-1 = TEEL-2/11
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = HHR=2
This review generated PAC values consistent with Rev. 29A*.
References
Chemical information and GHS health hazard ratings retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/Dibasic-Calcium-Phosphate-